Free games like Galactic Frontiers - Defense Protocol
Below are 8 free-to-play Steam games similar to Galactic Frontiers - Defense Protocol, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Galactic Frontiers - Defense Protocol page.
Ranked picks
- 1
Indigo Park: Chapter 1
Free-to-play alternative to Galactic Frontiers - Defense Protocol — no purchase or trial window.
Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.
- 2
The Lab
Free-to-play alternative to Galactic Frontiers - Defense Protocol — no purchase or trial window.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
- 3
DORONKO WANKO
Free-to-play alternative to Galactic Frontiers - Defense Protocol — no purchase or trial window. Shares Casual with Galactic Frontiers - Defense Protocol.
『DORONKO WANKO』 is a DORONKO Action Game. In this game, You can become a cute, innocent Pomeranian, make your master's home messy and dirty. "Will the master be angry with me?" Don't worry. Because you are a sweet doggie.
- 4
Landfall Archives
Free-to-play alternative to Galactic Frontiers - Defense Protocol — no purchase or trial window. Shares Strategy with Galactic Frontiers - Defense Protocol.
Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!
- 5
Aircar
Free-to-play alternative to Galactic Frontiers - Defense Protocol — no purchase or trial window. Shares Casual with Galactic Frontiers - Defense Protocol.
A simple immersive flying game built for VR. Pilot an aircar through a futuristic cityscape.
- 6
Outpath: First Journey
Free-to-play alternative to Galactic Frontiers - Defense Protocol — no purchase or trial window. Shares Casual with Galactic Frontiers - Defense Protocol.
Outpath: First Journey is a prologue chapter of the main game, Outpath. An experimental clicker base building game. Craft, gather & manage resources, build your base and buy more islands to exploit and expand!
- 7
DOGWALK
Free-to-play alternative to Galactic Frontiers - Defense Protocol — no purchase or trial window. Shares Casual with Galactic Frontiers - Defense Protocol.
Explore a hand-crafted winter forest as a big adorable dog and a little kid in tow. A short, free, open source project brought to you by Blender Studio.
- 8
South Scrimshaw, Part One
Free-to-play alternative to Galactic Frontiers - Defense Protocol — no purchase or trial window. Shares Casual with Galactic Frontiers - Defense Protocol.
South Scrimshaw is the story of a newborn whale in a vast alien ocean. It is a richly illustrated experimental visual novel, written in the style of a nature documentary.